269 



Anthraquinones 



Penicilliiim islandicuvi N.R.R.L. 1175 

 Shoji Shibata, Michio Takido and Terumi Nakajima, 

 Pharm. Bull. (Tokyo) 3 286 (1955). 



583 Iridoskyrin, CgoHigOig, irridescent red rods or plates, m.p. 358°. 



HO O OH 



HO O OH 



Penicillium islandicum Sopp. 



B. H. Howard and H. Raistrick, Biochem. J. 57 212 (1954). 



584 Aurofusarin, CyijHooOio, m.p. >360°. 



This Incompletely characterized pigment produced by 

 Fusarium culinorum W. G. Smith may be a dianthraqui- 

 none. 



Julius N. Ashley, Betty C. Hobbs and Harold Raistrick, 

 Biochem. J. 31 385 (1937). 



585 Penicilliopsin, C30H22O8, orange crystals, m.p. 330° (dec.)- 



HO O OH 



Penicilliopsis clavariaeformis Solms-Laubach 



H. Brockmann and H. Eggers, Angew. Chem. 67 706 (1955). 



